基于HC32L136K8TA和HX711的称重传感器读取,一直读不到数据main.c,请帮忙看看问题在...

ID:865588 · 发表于 2021-6-25 11:30

#include "gpio.h"
#include "hx711.h"
#include "ddl.h"

#define       HX711_GapValue       405

unsigned long HX711_Buffer = 0;
unsigned long Weight_Maopi = 0;
unsigned long Weight_Shiwu = 0;

void Get_Maopi()
{
      Weight_Maopi = HX711_Read();
}

long Get_Weight()
{
      HX711_Buffer = HX711_Read();
      Weight_Shiwu = HX711_Buffer;    ///将传感器的输出值储存
  Weight_Shiwu = Weight_Shiwu - Weight_Maopi; //获取实物的AD采样数值。
  Weight_Shiwu = (long)((float)Weight_Shiwu/HX711_GapValue);
      return Weight_Shiwu;
}

int32_t main(void)
{

      //       LED_GPIO_Config();

            ADInit();

            Get_Maopi();

while(1)
{

                              Get_Weight();

}
}

HX711.C
#include "hx711.h"
#include "gpio.h"
#include "ddl.h"

#if 0
void LED_GPIO_Config(void)
{
            stc_gpio_config_t stcGpioCfg;

///< 打开GPIO外设时钟门控
Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio, TRUE);

///< 端口方向配置->输入
stcGpioCfg.enDir = GpioDirIn;
///< 端口驱动能力配置->高驱动能力
stcGpioCfg.enDrv = GpioDrvL;
///< 端口上下拉配置->上拉
stcGpioCfg.enPuPd = GpioPu;
///< 端口开漏输出配置->开漏输出关闭
stcGpioCfg.enOD = GpioOdDisable;
///< 端口输入/输出值寄存器总线控制模式配置->AHB
stcGpioCfg.enCtrlMode = GpioAHB;

///< GPIO IO PD04初始化(PD04在STK上外接KEY(USER))
Gpio_Init(GpioPortD, GpioPin4, &stcGpioCfg);

///< 端口方向配置->输出(其它参数与以上（输入）配置参数一致)
stcGpioCfg.enDir = GpioDirOut;
///< 端口上下拉配置->下拉
stcGpioCfg.enPuPd = GpioPd;
///< GPIO IO PD05初始化(PD05在STK上外接LED(LED3))
Gpio_Init(GpioPortD, GpioPin5, &stcGpioCfg);
}
#endif

void ADInit(void)
{
      stc_gpio_config_t stcGpioCfg;

      ///< 打开GPIO外设时钟门控
Sysctrl_SetPeripheralGate(SysctrlPeripheralGpio, TRUE);

      ///< 端口方向配置->输出
stcGpioCfg.enDir = GpioDirOut;
      ///< 端口驱动能力配置->高驱动能力
stcGpioCfg.enDrv = GpioDrvL;
      ///< 端口上下拉配置->无上下拉
stcGpioCfg.enPuPd = GpioNoPuPd;
      ///< 端口开漏输出配置->开漏输出关闭
stcGpioCfg.enOD = GpioOdDisable;
      ///< 端口输入/输出值寄存器总线控制模式配置->AHB
stcGpioCfg.enCtrlMode = GpioAHB;
      ///< GPIO IO PA08初始化
Gpio_Init(GpioPortC, GpioPin7, &stcGpioCfg);       //CLK

      ///< 端口方向配置->输入
stcGpioCfg.enDir = GpioDirIn;
      ///< 端口驱动能力配置->高驱动能力
stcGpioCfg.enDrv = GpioDrvL;
      ///< 端口上下拉配置->无上下拉
stcGpioCfg.enPuPd = GpioNoPuPd;
      ///< 端口开漏输出配置->开漏输出关闭
stcGpioCfg.enOD = GpioOdDisable;
      ///< 端口输入/输出值寄存器总线控制模式配置->AHB
stcGpioCfg.enCtrlMode = GpioAHB;
               ///< GPIO IO PA09初始化
Gpio_Init(GpioPortC, GpioPin6, &stcGpioCfg); //DATA
}

unsigned long HX711_Read(void)       //时钟配置，128增益
{
      unsigned long val = 0;
      unsigned char i = 0;
      Gpio_SetIO(GpioPortC, GpioPin6);
      delay1us(1);
      Gpio_ClrIO(GpioPortC, GpioPin7);
      delay1us(1);
      while(Gpio_GetInputIO(GpioPortC, GpioPin6));

      for(i=0; i<24; i++)
      {
            Gpio_SetIO(GpioPortC, GpioPin7);
            delay1us(1);
            val = val << 1;
            Gpio_ClrIO(GpioPortC, GpioPin7);
            delay1us(1);
            if(Gpio_GetInputIO(GpioPortC, GpioPin6))
            {
                     val++;
            }
      }
      Gpio_SetIO(GpioPortC, GpioPin7);
      val ^= 0x800000;
      delay1us(1);
      Gpio_ClrIO(GpioPortC, GpioPin7);
      delay1us(1);
      return val;

}

ID:865588 · 发表于 2021-6-25 11:39

一直读不到数据

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